How to use image_send_to_editor_url filter in WordPress

Are you diving into the world of WordPress hooks? Let’s chat about the image_send_to_editor_url filter. This handy filter allows you to modify the image URL before it gets sent to the editor. Whether you’re a seasoned developer or just getting started, understanding how to implement this can enhance your WordPress site tremendously. Start by registering this filter using add_filter. You can pop this code into your theme’s functions.php or, better yet, in a custom WordPress Plugin. Why a plugin? Because it keeps your customizations safe during theme updates. At WePlugins, we always recommend working with plugins for this very reason.

Example 1: Modifying Image URL

Let’s look at a basic example where we modify the image URL sent to the editor.

function weplugins_modify_image_url($html, $src, $alt, $align) {
    // Your custom logic to modify $html
    return $html;
}
add_filter("image_send_to_editor_url", "weplugins_modify_image_url", 10, 4);

Example 2: Conditional Logic

In this example, we’ll add some conditional logic to modify the image URL only if certain conditions are met.

function weplugins_conditional_image_url($html, $src, $alt, $align) {
    if ($align === 'alignleft') {
        // Modify $html for left-aligned images
    }
    return $html;
}
add_filter("image_send_to_editor_url", "weplugins_conditional_image_url", 10, 4);

Example 3: Removing the Filter

Sometimes, you’ll want to remove a filter. Here’s how you can remove the image_send_to_editor_url filter.

remove_filter("image_send_to_editor_url", "weplugins_modify_image_url", 10, 4);

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